chore: enhance lint workflow and fix code quality issues

- Fix unused variables in i18n sync script and metadata generator
- Upgrade noUnusedVariables from warning to error in biome config
- Add verification step to lint-staged for stricter checks
- Add full project check (npm run check) to pre-commit hook
- Add language dictionaries for cspell (es-es, fr-fr, pt-pt, ru_ru)

This ensures all commits pass npm run check, preventing code quality
regressions from being committed. The pre-commit hook now runs both
lint-staged (for quick fixes on changed files) and npm run check (for
full project validation).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: ericyangpan

.claude/skills/i18n/scripts/sync.mjs

@@ -55,54 +55,6 @@ function getAllKeys(obj, prefix = '') {
   return keys
 }
 
-/**
- * Get value from nested object using dot notation
- * @param {Object} obj - The object to query
- * @param {string} path - Dot notation path (e.g., 'pages.home.title')
- * @returns {*} The value at the path
- */
-function getValueByPath(obj, path) {
-  return path.split('.').reduce((current, key) => current?.[key], obj)
-}
-
-/**
- * Set value in nested object using dot notation
- * @param {Object} obj - The object to modify
- * @param {string} path - Dot notation path
- * @param {*} value - Value to set
- */
-function setValueByPath(obj, path, value) {
-  const keys = path.split('.')
-  const lastKey = keys.pop()
-  const target = keys.reduce((current, key) => {
-    if (!(key in current)) {
-      current[key] = {}
-    }
-    return current[key]
-  }, obj)
-  target[lastKey] = value
-}
-
-/**
- * Delete value from nested object using dot notation
- * @param {Object} obj - The object to modify
- * @param {string} path - Dot notation path
- */
-function deleteValueByPath(obj, path) {
-  const keys = path.split('.')
-  const lastKey = keys.pop()
-  const target = keys.reduce((current, key) => current?.[key], obj)
-
-  if (target && lastKey in target) {
-    delete target[lastKey]
-
-    // Clean up empty parent objects
-    if (Object.keys(target).length === 0 && keys.length > 0) {
-      deleteValueByPath(obj, keys.join('.'))
-    }
-  }
-}
-
 /**
  * Recursively rebuild object with same structure and order as reference
  * @param {Object} reference - The reference object (en.json)

.husky/pre-commit

@@ -1 +1,2 @@
 npx lint-staged
+npm run check

biome.json

@@ -35,7 +35,7 @@
       },
       "correctness": {
         "useExhaustiveDependencies": "warn",
-        "noUnusedVariables": "warn",
+        "noUnusedVariables": "error",
         "noUndeclaredVariables": "error"
       },
       "performance": {

cspell.json

@@ -20,22 +20,18 @@
     "CLIs",
     "cmdk",
     "Entwicklungsworkflows",
-    "Español",
-    "Français",
     "hrefs",
     "Integrationen",
     "Junie",
     "Kimi",
     "Kiro",
     "Kode",
     "Neovate",
-    "Português",
     "Qoder",
     "QoderCLI",
     "Qwen",
     "RLHF",
     "Roo",
-    "Русский",
     "shareAI",
     "TRAE"
   ],